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Pyramid Star Pattern in Java

Java program to print a full pyramid or equilateral triangle star pattern.

Last updated: 11 January 2026

Method 1: Using Loops

Handling spaces and stars.

Main.javaRun in Compiler →
public class Pyramid {
    public static void main(String[] args) {
        int rows = 5, k = 0;

        for (int i = 1; i <= rows; ++i, k = 0) {
            for (int space = 1; space <= rows - i; ++space) {
                System.out.print("  ");
            }

            while (k != 2 * i - 1) {
                System.out.print("* ");
                ++k;
            }

            System.out.println();
        }
    }
}
Output:
        * 
      * * * 
    * * * * * 
  * * * * * * * 
* * * * * * * * *

Explanation

We need to print spaces first (rows-i), then odd number of stars (2*i-1).

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